1.1 本规程涵盖了使用催化和非催化参考材料校准和验证动态成像分析仪（分析仪）。分析仪的测量范围为500 µm至20 000 微米。 1.2 一旦分析仪经过校准和验证，本规程也可用于分析催化材料。 1.3 单位- 以国际单位表示的数值视为标准值；然而，英制单位和网格单位也可以接受，转换方法见 附录X3 . 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 颗粒大小和形状对预测催化材料的性能很重要。它们影响最终产品的体积密度，从而影响性能的有效性。 5.2 建立一个商用且尺寸可靠的分析仪验证参考，以接近公差，使不同的分析仪易于按照等效标准进行检查。 5.3 为了提高生产质量，分析催化材料时也可遵循此规程。小节 9 和 10 关于样品计数测定和取样建议的说明。测试方法 D6299型 可用于监测分析仪在测量催化材料的尺寸和形状时的性能。

1.1 This practice covers the calibration and verification of Dynamic Imaging Analyzers (analyzers) using catalytic and non-catalytic reference materials. The measurement range of analyzers covers from 500 µm to 20 000 µm. 1.2 This practice may also be used to analyze catalytic materials once the analyzer has been calibrated and verified. 1.3 Units— The values stated in SI units are to be regarded as standard; however, English and mesh units are also acceptable with conversions provided in Appendix X3 . 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 Particle size and shape are important in predicting the performance of catalytic materials. They influence the bulk density of the final product and thereby the effectiveness of performance. 5.2 Establishing a verification reference for the analyzer that is commercially available and dimensionally reliable to close tolerances enables different analyzers to be easily checked to equivalent standards. 5.3 This practice may also be followed to analyze catalytic materials for quality manufacturing purposes. Sections 9 and 10 instruct on sample count determination as well as sampling recommendations. Test Method D6299 may be utilized to monitor performance of the analyzer in measuring the size and shape of catalytic materials.